<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--  卡片视图区域  -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!--   table表格区域   -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="90px"></el-table-column>
        <el-table-column label="商品重置" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!--   分页区域   -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
  export default {
    name: 'List',
    data(){
      return {
        queryInfo:{
          query: '',
          pagenum: 1,
          pagesize: 10
        },
        // 商品列表
        goodslist:[],
        // 总数据条数
        total: 0
      }
    },
    created () {
      this.getGoodsList()
    },
    methods:{
      // 根据分页获取对应的商品列表
      async getGoodsList(){
        const {data:res} = await this.$http.get('goods',{params: this.queryInfo})

        if (res.meta.status !== 200){
          return this.$message.error('获取商品列表失败！')
        }

        // this.$message.success('获取商品列表成功！')
        console.log(res.data)
        this.goodslist = res.data.goods
        this.total = res.data.total
      },
      handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
      },
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
      },
      // 根据Id删除对应的商品
      async removeById(id){
        const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if (confirmResult !== 'confirm'){
          return this.$message.info('已经取消删除！')
        }

        const {data:res} = await this.$http.delete(`goods/${id}`)

        if (res.meta.status !== 200){
          return this.$message.error('删除成功！')
        }

        this.$message.success('删除成功！')
        this.getGoodsList()
      },
      // 点击按钮，跳转到添加商品的页面
      goAddpage(){
        this.$router.push('/goods/add')
      }
    }
  }
</script>

<style lang="less" scoped>

</style>
